What's on my trachy?

[Shawnman]

I know this isn't the greatest picture but does anyone have an idea what this dark red is growing on the bottom of my trachy? One side has it and one doesn't. Some type of algae? There are a few spots of it on my clam and zoa's also

 

[20gallonreefer000]

I know this isn't the greatest picture but does anyone have an idea what this dark red is growing on the bottom of my trachy? One side has it and one doesn't. Some type of algae? There are a few spots of it on my clam and zoa's also

Looks to be red coraline algae, good for the tank

 

[Shawnman]

Looks to be red coraline algae, good for the tank

Okay thanks. I do have loads of it in the tank. Mostly not this texture or color.